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不锈钢片阳极电芬顿技术降解氯化苄研究
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Abstract:
以不锈钢为阳极和石墨为阴极，自制电-Fenton体系降解氯化苄模拟废水。研究30%H2O2投加浓度、初始pH值、电流密度、电解时间等影响因素，确定氯化苄最佳去除条件及其去除率。氯化苄浓度采用气相色谱法测定。结果表明，初始pH为3、电流密度为3 mA/cm2、电解时间为40 min，30%H2O2投加浓度30%时，氯化苄去除率达70%以上。不锈钢阳极的电-Fenton法降解氯化苄，环保节能，设备简单，操作方便，性能稳定，为难降解污染物处理提供新思路。
The degradation of benzyl chloride in simulated wastewater was studied by using a self-made elec-tron-Fenton system device with stainless steel sheets as anode and graphite as cathode. The factor experiments were carried out to adjust the influence of initial H2O2 dosage, initial pH value, current density and electrolysis time on the degradation of benzyl chloride, the best degradation conditions and degradation rate of benzyl chloride were determined. The concentration of benzyl chloride was determined by gas chromatography. The results of factor experiment show that when the initial pH is 3, the current density is 3 mA/cm2, the electrolysis time is 40 min, and the concentration of 30%H2O2 is 30%, the degradation effect is the best and more than 70%. Electro-Fenton system de-vice with stainless steel sheets as anode for the degradation of benzyl chloride is simple, the opera-tion is convenient, and the performance of electrolysis system is stable, and providing new idea for the degradation of refractory organic pollutants.
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